Window ventilator



May 18 1926.

M. F. CLAY WINDOW VENTILATOR Filed Nov. 21, 1925 Patented May 18, 1926.

UNITED s'rs MARSHALL CLAY, OF CANTON, OHIO.

WINDOW YEN'I'ILATOR.

Application filed November This invention relates to ventilator screens for windows and similar places where. 1t 1s desirable to provide ventilation, and the object of the improvement is to provide a ventilator arranged to permit free passage of Figure 1 is an inside elevation of the improved ventilator Fig. 2, a section on the line 2-2, Fig; 1; Fig. 3, a section on the line 3-3, Fig. 1; Fig. 4c, a section on the line 4-4, Fig. 1; Fig. 5, a fragmentary perspective view of one of the detachable springs for stretching the screen fabric across the face of the ventilator, and

Fig. 6, a section similar to Fig. 3, showing a modified construction.

Similar numerals indicate corresponding parts throughout the drawing.

The frame portion of the ventilator is formed from a metal sheet or plate 1 having spaced rows of vanes or fins 2 stamped therefrom and bent outwardly substantially at an angle of 4C5 degrees to the normal plane of the plate or sheet 1.

A channel strip 3 is spot welded or otherwise attached to the outer face of the plate between the rows of vanes or fins, closing the ends of the same, and angle strips 4: are likewise connected to the face of the plate or sheet 1 to close the outer ends of the vanes.

The upper and lower edge portions of the plate 1 have the substantially V -shaped channel portions 5 formed thereon, to slidably receive the end slides 6 each of which preferably has its upper and lower edges bent back at an angle, as shown at 7, to slidably engage the V-shaped channels 5.

The inner end portion of each of the end slides is cut away as indicated at 8 exposing the greater portion of the ventilating slots 9 from which the vanes 2 are stamped, in order to permit ventilating air to pass freely through the same.

For the purpose of preventing dirt and dust from passing through the ventilator,

21, 1925. Serial No. 70,486.

into the room, a screen fabric 10- is stretched over the plate or sheet 1 the ends of this fab rio being detachably connected to the end edges of the plate as by channel shaped clamping strips 11. In order to prevent these clamping strips from frictionally engaging the slides 6 the end edges of the plate are preferably offset as indicated at 12.

If desired the fabric may be connected to the ends of the plate by means of a channel shaped clamping portion 13 formed upon the outer edges of the-end angle members 4, which in this case are detachably connected to the plate 1, being held in position merely by frictional engagement over the fabric which is folded over the ends of the plate.

In order to stretch the screen fabric tightly across the width of the ventilator, spring wires 14: are provided each of which has the curved end portions 15, providing the heel and toe 16 and 17 respectively, for engagement with the fabric within" the V-shaped channels 5.

For the purpose of mounting the ventilator within a widow opening each of the end slides 6 is provided at its outer end with an angular flange 18, the lower portion of which is provided with an opening 19 to receive a screw eye or the. like which may be insert-ed into the parting strip of the window.

A wire spring 20 is provided at the upper portion of each of these flanges for engagement with the parting strip of the window casing to hold the ventilator in position. Each of these springs is formed of a single wire having the angular upper end 21 which is secured to the end slide as by a tang 22 formed thereon. The lower portion of each of these springs is substantially U-shaped as shown at 23 having the outwardly bent finger 24 extending through a slot 25 in the flange 18 and arranged to engage an opening provided for the purpose in the parting strip to permit the window sash to be raised or lowered without interference by the ventilator, and to contact with the side of the parting strip to allow the sash to rest upon the top of the ventilator. WVith this construction of spring it will be seen that as the U portion 23 and upper bend 26 are flexed the finger 2 will remain in substantially the same horizontal plane.

A depending wire stud 27 may be provided at each lower corner of the ventilator, for engagement in suitable holes provided in the window sill for that purpose,

this construction being especially adapted for use in connection with metal window frames.

Each of these wire studs may have a central portion 28, retained in the channel 7 as by a tang 29, and an angular inner end 30 for preventing the same from turning within the channel.

From the above it will be obvious that a window ventilator is provided which is quickly adjustable to tit windows of various widths and which may be quickly and easily installed in a window opening in position to permit the sash to be raised and lowered without interfering with the same.

It will also be seen that while the ventilator permits suiiicient ventilating air to pass therethrough it will prevent rain, snow or dust and strong gusts of wind from blowing into the room. It will also be seen that the screen fabric is detachable and may be easily and readily removed and replaced when it is necessary to wash or remove the same.

I claim:

1. A ventilator comprising a metal plate having spaced rows of vanes stamped therefrom and located at an angle to the normal plane of the plate and channel strips attached to the plate between the rows of vanes.

2. A ventilator comprising a metal plate having ventilator openings therein, channels formed at the upper and lower edges of the plate, a fabric screen detachably connected to the ends of the plate and spring wires located transversely across the plate and engaging the upper and lower edges of the fabric within said channels.

3. A ventilator comprising a metal plate having ventilating openings therein, channels formed at the upper and lower edges of the plate, a fabric screen detachably connected to the ends of the plate and spring wires located transversely across the plate and engaging the upper and lower edges of the fabric within said channels, each of said spring wires having angular curved end portions providing heel and toe contacts with the fabric screen.

4. A ventilator comprising a metal plate having ventilating openings therein, channels formed at the upper and lower edges of the plate, a fabric screen detachably connected to the ends of the plate and spring wires located transversely across the plate and engaging the upper and lower edges of the fabric within said channels, each of said spring wires having angular curved end p01- tions providing heel and toe contacts with the fabric screen, the central portion of the spring wire. being flexed to retain the screen fabric in position.

ir ventilator comprising a metal plate having ventilating openings therein, flanged end members upon the ventilator having upper and lower openings in their flanges, the lower openings being arranged to receive pivots for engagement with a window casing and springs having inturned angular upper ends connected to said end members and pro vided with depending Ushaped portions having outturned, angular upper ends extended through the upper openings in the flanges for engagement with the window casing.

In testimony that I claim the above, I have hereunto subscribed my name.

MARSHALL F. CLAY. 

